Keyboard



FIG. 1 is a perspective view from the upper front, right side of the keyboard showing our new design;

FIG. 2 is a perspective view from the upper back, left side thereof;

FIG. 3 is top plan view thereof;

FIG. 4 is a bottom plan thereof;

FIG. 5 is a front elevation view thereof;

FIG. 6 is a back elevation view thereof;

FIG. 7 is a left side elevation view thereof; and,

FIG. 8 is a right side elevation view thereof.

The broken lines depict portions of the keyboard that form no part of the claimed design. 

CLAIM The ornamental design for keyboard, as shown and described. 